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EXTPUL2019100721
Hyper engineered Pulley Wheels set (2 pcs).
4 Hybrid-Ceramic low-friction cartridge bearings with super low friction 2RS seals.
Durable and lightweight Delrin body and teeth.
Compatible: Sram MTB XD 11-12s
Hyper accurate Derlin CNC
12T - 12T PH (phased teeth)
Weight: 13g set